CN108208277A - A kind of method that coffee-extract is extracted from coffee grounds - Google Patents
A kind of method that coffee-extract is extracted from coffee grounds Download PDFInfo
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- CN108208277A CN108208277A CN201711391473.9A CN201711391473A CN108208277A CN 108208277 A CN108208277 A CN 108208277A CN 201711391473 A CN201711391473 A CN 201711391473A CN 108208277 A CN108208277 A CN 108208277A
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- Prior art keywords
- coffee
- extract
- grounds
- extracted
- coffee grounds
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Links
- 235000016213 coffee Nutrition 0.000 title claims abstract description 101
- 235000013353 coffee beverage Nutrition 0.000 title claims abstract description 101
- 239000000284 extract Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000000287 crude extract Substances 0.000 claims abstract description 12
- 238000000197 pyrolysis Methods 0.000 claims abstract description 9
- 238000013517 stratification Methods 0.000 claims abstract description 7
- 239000002893 slag Substances 0.000 claims description 14
- 241000533293 Sesbania emerus Species 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 5
- 229940023032 activated charcoal Drugs 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 2
- 235000021539 instant coffee Nutrition 0.000 abstract description 8
- 239000003205 fragrance Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005457 optimization Methods 0.000 abstract description 2
- 240000007154 Coffea arabica Species 0.000 description 74
- 238000001035 drying Methods 0.000 description 8
- 235000002187 Coffea robusta Nutrition 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 235000007460 Coffea arabica Nutrition 0.000 description 3
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 3
- 244000046052 Phaseolus vulgaris Species 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000000796 flavoring agent Substances 0.000 description 3
- 235000019634 flavors Nutrition 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 241000723377 Coffea Species 0.000 description 2
- 241000227999 Coffea canephora Species 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 241001107098 Rubiaceae Species 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- BYXCFUMGEBZDDI-UHFFFAOYSA-N 1,3,7-trimethyluric acid Chemical compound CN1C(=O)N(C)C(=O)C2=C1NC(=O)N2C BYXCFUMGEBZDDI-UHFFFAOYSA-N 0.000 description 1
- 241000167854 Bourreria succulenta Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 241000337007 Oceania Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 150000001728 carbonyl compounds Chemical class 0.000 description 1
- 235000019693 cherries Nutrition 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 235000021038 drupes Nutrition 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000021022 fresh fruits Nutrition 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- FXHGMKSSBGDXIY-UHFFFAOYSA-N heptanal Chemical compound CCCCCCC=O FXHGMKSSBGDXIY-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 methoxyl group Chemical group 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
- A23F5/00—Coffee; Coffee substitutes; Preparations thereof
- A23F5/24—Extraction of coffee; Coffee extracts; Making instant coffee
- A23F5/36—Further treatment of dried coffee extract; Preparations produced thereby, e.g. instant coffee
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Tea And Coffee (AREA)
Abstract
The present invention relates to a kind of methods that coffee-extract is extracted from coffee grounds, and by coffee grounds, 350 ~ 420 DEG C of destructive distillation obtain coffee grounds fraction under anoxic condition；The coffee grounds fraction under the conditions of 45 ~ 65 DEG C, 0.03 ~ 0.05MPa is subjected to rectification under vacuum, obtains coffee crude extract；By the coffee crude extract stratification, upper liquid is obtained；Coffee-extract is obtained by the upper oil phase is purified.The present invention passes through technological process and the optimization of process conditions, the coffee grounds that instant coffee production generates is recycled, fraction is collected by high-temperature retorting, fraction by rectification under vacuum is handled, collects coffee crude extract, coffee crude extract passes through stratification, take upper liquid, coffee-extract is obtained by purifying again, which has strong baking fragrance, colourless or yellowish, clean, uniform, so as to carry out the utilization of resources to coffee grounds well.
Description
Technical field
The invention belongs to field of food, and in particular to a kind of method that coffee-extract is extracted from coffee grounds.
Background technology
Coffee is Rubiaceae (Rubiaceae) Coffea (Coffea) perennial evergreen shrub or dungarunga, is originated in non-
The continent central and north is planted in tropical and subtropical region such as Asia, Africa, Latin America, Oceania extensively.Fresh coffee beans are
The endosperm fraction of coffee drupe is for raw material, through dry process (main work with ripe coffee fresh fruit (Cherry coffee)
Skill flow：Shine fruit, peel shell, wind remove, sieving and grading) or wet processing (technical process：Clean, peel, fermenting, wash beans,
Impregnate, be dry, shelling, polishing, classification, sorting) made of fresh coffee beans.The coffee classification for being commonly used for drinking has two classes：Granule
Kind coffee (Arabica coffee), Coffea canephora (Robusta coffee, Coffea canephora).
Instant coffee (soluble coffee/instant coffee) is that a kind of food of generally existing in the market is former
Material, the product mainly using coffee bean as raw material, be processed by the processes such as baked, grinding, extraction, concentration, spray drying.With roasting
Roasted coffee beans for raw material produce instant coffee, yield generally in 30~55%, 45~70% dry matter as coffee grounds is discharged,
This means that production process can generate a large amount of coffee grounds.
Usually, fresh coffee slag water content 68%, fat content 3.7%, protein content 4.2%, ash content 0.15%,
Fat content ＜ 1% in instant coffee, it means that most of fat (caffeol) is discharged with coffee grounds, and detection shows
We dry fresh coffee grounds, dry fat content ＞ 10% in coffee grounds.Simultaneously in coffee grounds containing a large amount of lignin,
The carbohydrate such as the insoluble polysaccharide of fiber, water, this just provides substrate to produce flavor substance.
At present, instant coffee manufacturer by the coffee grounds of drying for burning, the purposes such as edible fungus culturing, do not carry out
The utilization of resources.
Invention content
The technical problems to be solved by the invention are to provide a kind of can be extracted from coffee grounds with strong baking
The method of fragrance, colourless or yellowish, clean, uniform coffee-extract.
For solution more than technical problem, the present invention adopts the following technical scheme that：
It is an object of the present invention to provide a kind of method that coffee-extract is extracted from coffee grounds, including walking as follows
Suddenly：
Step (1), by coffee grounds, 350~420 DEG C of destructive distillation obtain coffee grounds fraction under anoxic condition；
The coffee grounds fraction is carried out decompression essence by step (2) under the conditions of 45~65 DEG C, -0.03~-0.05MPa
It evaporates, obtains coffee crude extract；
Step (3), by the coffee crude extract stratification, obtain upper liquid；
Step (4) obtains coffee-extract by the upper liquid is purified.
Preferably, in step (1), 390~400 DEG C of pyrolysis temperature is controlled.
Preferably, in step (2), the temperature for controlling rectification under vacuum is 50~65 DEG C, further preferably 60~65 DEG C.
Preferably, it in step (4), is purified using activated-charcoal column.
Preferably, the weight water content ＜ 5% of the coffee grounds.
Preferably, the preparation method of the coffee grounds is：Coffee bean grinding after baking is obtained into ground coffee, then will
Ground coffee extracts 10~45min under the conditions of 170~200 DEG C, 0.8~1.6MPa, and deslagging obtains coffee wet slag, then by described in
Coffee wet slag be dried to obtain the coffee grounds.
It is further preferred that the mesh number of the ground coffee described in control is 5~35 mesh.
It is further preferred that the ground coffee extracts at 170~190 DEG C.
It is further preferred that the coffee bean is Arabica and/or Robusta.
The coffee bean after baking in the present invention is that fresh coffee beans are baked to obtain according to common process.
It is a further object to provide a kind of using coffee-extract made from the method
The equipment used in the present invention is conventional equipment.
Due to the implementation of above technical scheme, the present invention has the following advantages that compared with prior art：
The present invention is recycled the coffee grounds that instant coffee production generates by technological process and the optimization of process conditions
It utilizes, fraction is collected by high-temperature retorting, fraction is handled by rectification under vacuum, collect coffee crude extract, coffee crude extract warp
Stratification is crossed, takes upper oil phase, then coffee-extract is obtained by purifying, which has strong baking perfume
It is gas, colourless or yellowish, clean, uniform, so as to carry out the utilization of resources to coffee grounds well.
Specific embodiment
With reference to specific embodiment, the present invention will be further described in detail, but the present invention is not limited to following implementations
Example.The implementation condition used in embodiment can do further adjustment according to specifically used different requirements, the implementation being not specified
Condition is the normal condition in the industry, and " % " of unexplained reference is mass percent.
Embodiment 1
(1), the Robusta coffee bean after baking on coffee-mill is ground to 5~35 mesh, obtains grinding coffee
Coffee powder；
(2), the coffee grinds for preparing step (1) extract 45min, deslagging obtains coffee at 170 DEG C under the conditions of 0.8Mpa
Coffee wet slag；
(3), the coffee wet slag drying for preparing step (2) obtains coffee grounds to water content ＜ 5%；
(4), the coffee grounds destructive distillation at 390~400 DEG C under anoxic condition for preparing step (3), obtains coffee grounds and evaporates
Point；
(5), by step (4) prepare the rectification under vacuum under the conditions of 50 DEG C, -0.05Mpa of coffee grounds fraction, obtain it is transparent,
Clear coffee crude extract；
(6), step (5) is obtained into coffee and slightly carries stratification, obtain upper liquid；
(7), step (6) is obtained upper liquid to purify by activated-charcoal column, obtain having strong baking fragrance, it is colourless,
Totally, uniform coffee-extract product.
1 product testing result of embodiment
| Serial number | Index name | Testing result |
| 1 | Color and luster | It is colourless |
| 2 | Fragrance | Strong baking fragrance |
| 3 | Structural state | Uniform liquid, is visible by naked eyes impurity |
| 4 | Relative density (25 DEG C/25 DEG C) | 0.698 |
| 5 | Acid content (represents) with acetic acid, % | 8.9 |
| 6 | Phenol content (methoxyl group phenol represents with 2,6-), mg/mL | 8.1 |
| 7 | Carbonyl compound content (represents) with enanthaldehyde, g/100mL | 4.2 |
Embodiment 2
(1), the arabica coffees beans after baking on coffee-mill are ground to 5~35 mesh, obtain grinding coffee
Coffee powder；
(2), the coffee grinds for preparing step (1) extract 10min extractions at 190 DEG C, under the conditions of 1.6Mpa, and deslagging obtains
To coffee wet slag；
(3), the coffee wet slag drying for preparing step (2) obtains coffee grounds to water content ＜ 5%；
(4), the drying coffee grounds destructive distillation under the conditions of 390~400 DEG C under anoxic condition for preparing step (3), obtains
Coffee grounds fraction；
(5), by step (4) prepare the rectification under vacuum under the conditions of 65 DEG C, -0.03Mpa of coffee grounds fraction, obtain it is transparent,
Clear coffee crude extract；
(6), step (5) is obtained into coffee and slightly carries stratification, obtain upper liquid；
(7), step (6) is obtained upper liquid to purify by activated-charcoal column, obtains that there is strong baking fragrance, micro- Huang
Color, clean, uniform coffee-extract product.
2 product testing result of embodiment
Comparative example 1
(1), the Robusta coffee bean after baking on coffee-mill is ground to 5~35 mesh, obtains grinding coffee
Coffee powder；
(2), the coffee grinds for preparing step (1) extract 45min, deslagging obtains coffee at 170 DEG C under the conditions of 0.8Mpa
Coffee wet slag；
(3), the coffee wet slag drying for preparing step (2) obtains coffee grounds to water content ＜ 5%；
(4), the coffee grounds destructive distillation at 300~310 DEG C under anoxic condition for preparing step (3), no liquid fraction production
Go out.
Comparative example 2
(1), the arabica coffees beans after baking on coffee-mill are ground to 5~35 mesh, obtain grinding coffee
Coffee powder；
(2), the coffee grinds for preparing step (1) extract 10min extractions at 190 DEG C, under the conditions of 1.6Mpa, and deslagging obtains
To coffee wet slag；
(3), the coffee wet slag drying for preparing step (2) obtains coffee grounds to water content ＜ 5%；
(4), the drying coffee grounds destructive distillation under the conditions of 390~400 DEG C under anoxic condition for preparing step (3), obtains
Coffee grounds fraction, the ingredient are the sticky pastes of black, and flavor is more miscellaneous.
It if, can not from comparative example 2 as it can be seen that only with high-temperature retorting, and without subsequent rectification under vacuum
Colourless or yellowish uniform liquid is obtained, product is in dark thick paste, and flavor is more miscellaneous.
The present invention is described in detail above, its object is to allow the personage for being familiar with this field technology that can understand this
The content of invention is simultaneously implemented, and it is not intended to limit the scope of the present invention, all Spirit Essence institutes according to the present invention
The equivalent change or modification of work should all cover within the scope of the present invention.
Claims (10)
- A kind of 1. method that coffee-extract is extracted from coffee grounds, it is characterised in that：Include the following steps：Step（1）, by coffee grounds, 350 ~ 420 DEG C of destructive distillation obtain coffee grounds fraction under anoxic condition；Step（2）, the coffee grounds fraction is subjected to rectification under vacuum under the conditions of 45 ~ 65 DEG C, -0.03 ~ -0.05MPa, obtain Coffee crude extract；Step（3）, by the coffee crude extract stratification, obtain upper liquid；Step（4）, obtain coffee-extract by the upper liquid is purified.
- 2. the method according to claim 1 that coffee-extract is extracted from coffee grounds, it is characterised in that：Step（1）In, Control 390 ~ 400 DEG C of pyrolysis temperature.
- 3. the method according to claim 1 that coffee-extract is extracted from coffee grounds, it is characterised in that：Step（2）In, The temperature for controlling rectification under vacuum is 50 ~ 65 DEG C.
- 4. the method according to claim 1 that coffee-extract is extracted from coffee grounds, it is characterised in that：Step（4）In, It is purified using activated-charcoal column.
- 5. the method according to claim 1 that coffee-extract is extracted from coffee grounds, it is characterised in that：The coffee The weight water content ＜ 5% of slag.
- 6. the method for coffee-extract is extracted from coffee grounds according to claim 1 or 5, it is characterised in that：Described The preparation method of coffee grounds is：Coffee bean grinding after baking is obtained into ground coffee, then by ground coffee 170 ~ 200 DEG C, 0.8 10 ~ 45min is extracted under the conditions of ~ 1.6MPa, deslagging obtains coffee wet slag, is then dried to obtain the coffee wet slag described Coffee grounds.
- 7. the method according to claim 6 that coffee-extract is extracted from coffee grounds, it is characterised in that：Described in control The mesh number of ground coffee is 5 ~ 35 mesh.
- 8. the method according to claim 6 that coffee-extract is extracted from coffee grounds, it is characterised in that：The coffee Powder extracts at 170 ~ 190 DEG C.
- 9. the method according to claim 6 that coffee-extract is extracted from coffee grounds, it is characterised in that：The coffee Beans are Arabica and/or Robusta.
- 10. a kind of coffee-extract made from method using described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711391473.9A CN108208277A (en) | 2017-12-21 | 2017-12-21 | A kind of method that coffee-extract is extracted from coffee grounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711391473.9A CN108208277A (en) | 2017-12-21 | 2017-12-21 | A kind of method that coffee-extract is extracted from coffee grounds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108208277A true CN108208277A (en) | 2018-06-29 |
Family
ID=62647625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711391473.9A Pending CN108208277A (en) | 2017-12-21 | 2017-12-21 | A kind of method that coffee-extract is extracted from coffee grounds |
Country Status (1)
| Country | Link |
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| CN (1) | CN108208277A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105217629A (en) * | 2015-10-30 | 2016-01-06 | 广东工业大学 | The preparation method of coffee grounds gac |
| CN107335247A (en) * | 2017-06-20 | 2017-11-10 | 北京林业大学 | A kind of method of acids classified utilization in biomass thermal conversion solution product |
-
2017
- 2017-12-21 CN CN201711391473.9A patent/CN108208277A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105217629A (en) * | 2015-10-30 | 2016-01-06 | 广东工业大学 | The preparation method of coffee grounds gac |
| CN107335247A (en) * | 2017-06-20 | 2017-11-10 | 北京林业大学 | A kind of method of acids classified utilization in biomass thermal conversion solution product |
Non-Patent Citations (1)
| Title |
|---|
| 《空气和废气监测分析方法指南》编委会: "《空气和废气监测分析方法指南 下》", 31 July 2014, 中国环境科学出版社 * |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 215222 No. 127 Wufang Road, Youyi Industrial Zone, Songling Town, Wujiang District, Suzhou City, Jiangsu Province Applicant after: Jiahe Food Industry Co.,Ltd. Address before: 215222 No. 127 Wufang Road, Youyi Industrial Zone, Songling Town, Wujiang District, Suzhou City, Jiangsu Province Applicant before: SUZHOU JIAHE FOODS INDUSTRY Co.,Ltd. |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201119 Address after: Friendship Industrial Zone Songling town of Wujiang District of Suzhou City, Jiangsu province 215222 Applicant after: Suzhou golden cat Coffee Co.,Ltd. Address before: Friendship Industrial Zone Songling town of Wujiang District of Suzhou City, Jiangsu province 215222 five road No. 127 Applicant before: Jiahe Food Industry Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180629 |